Collaboration hub



FIG. 1 is a front perspective view of a collaboration hub;

FIG. 2 is a back perspective view of the collaboration hub of FIG. 1;

FIG. 3 is a front view of the collaboration hub of FIG. 1;

FIG. 4 is a back view of the collaboration hub of FIG. 1;

FIG. 5 is a first side view of the collaboration hub of FIG. 1;

FIG. 6 is a second side view of the collaboration hub of FIG. 1;

FIG. 7 is a top view of the collaboration hub of FIG. 1; and,

FIG. 8 is a bottom view of the collaboration hub of FIG. 1.

Any portions shown using dashed lines are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a collaboration hub, as shown and described. 